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Design of the Air conditioning unit for additive robotic fabrication
Mandáková, Adéla ; Chorý, Tomáš (referee) ; Škaroupka, David (advisor)
The design of air conditioning unit is based on combination of the product itself and related architecture. The large-scale 3D printing is becoming more and more popular, that is why this thesis chose additive manufacturing robotic technology for designing the air conditioner. According to analysis the air distribution through perforations is the most convenient one for an indoor unit. An outdoor unit tends to be hidden because of inhomogeneity with the building. To obtain more variant studies for the design a generative process was applied. This method was applied also later on, because additive manufacturing is able to easily change dimension parameters and thus fulfil individual customer requests. Other advantages of robotic printing are the lattice structures that enable perforation manufacturing without waste and the possibility of using generative design methods.
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A device for welding 3D printing filament
Roden, Lukáš ; Škaroupka, David (referee) ; Krčma, Martin (advisor)
This bachelor’s thesis deals with filament welding in 3D printers. During the print, there is often an extra part of the filament, that can be no longer used due to its small length. In this thesis I deal with the equipment construction for connecting these remnants of the cord or even longer pieces. In the first part is a search which deals with types of 3D printers, material of filaments and the issue of the welding process. In the second part, the acquired knowledge is used to create your own device design. More precisely, the analysis of the usability of individual materials and construction designs. In the last part I deal with a specific form solution of individual components.
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Additive manufacturing of spatial trusses from polymeric materials
Křivohlavý, Petr ; Němeček, Stanislav (referee) ; Škaroupka, David (advisor)
This thesis is focused on creating polymer lattice struts without any necessary support in full length using robotic 3D printing. The aim of the thesis is to find suitable process parameters and printing strategies with respect to the accuracy of the polymer struts. A statistical model of effects of individual process parameters has been produced to achieve stated objectives. The model enables finding optimal process parameters. The printing strategies for thus established process parameters are tested to increase the accuracy of the finished print and the quality of the bonds between individual struts. The accuracy assessment is executed using optical 3D metrology. The maximum deviation from the nominal shape 0.54mm has been accomplished using discovered process parameters and printing strategies.
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Wavefront sensor
Škaroupka, David ; Jákl, Petr (referee) ; Dostál, Zbyněk (advisor)
When the light passes through optical elements it can cause deformation of wavefront light due to the damage of materials and optical aberrations. The deformation leads to unprecise imaging and deformation of an image. The diploma work mentions wavefront sensing techniques which are important for determination inappropriate errors of optical elements and the specification of their properties. The purpose of the master's thesis is to suggest and investigate wavefront sensing methods after the light passes through the optical element while using the digital micromirror device. The work deals with the topic of wavefront aberrations and geometric optical defects of optical elements. Different kinds of commercial products determined for wavefront sensing are described too.
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Design of the product for additive manufacturing
Ritterová, Diana ; Haltof, Vladimír (referee) ; Škaroupka, David (advisor)
The thesis deals with the design of an orthopedic insole with emphasis on breathability and support of a longitudial arch. The insole can be manufactured by using 3D printing technology FFF from a flexible plastic TPU filament. The shape of the insole is based on the contour of a foot. The inner structure was designed in the Grasshopper plug-in and then added to the shape of the insole in Rhinoceros.
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Redesign of the chip reader
Kusyn, Martin ; Rubínová, Dana (referee) ; Škaroupka, David (advisor)
The bachelor thesis is focused on redesign of a microchip reader for 3D printer filament cartridges. The project deals with current market analysis, as well as analysis of previous cover of the device, application of basic technical and ergonomic parameters, description of proposed solution and its implementation onto current hardware. Emphasis was placed upon ergonomics of handling, reader-cartridge interaction, effective usage of internal space, positions of internal components and application of additive manufacturing guidelines for the manufacturing processes of the cover. Manufacture, fitting and testing of a prototype for the new cover for the microchip reader are also part of this project.
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Design of a porcelain set for additive manufacturing
Vítek, Jan ; Haltof, Vladimír (referee) ; Škaroupka, David (advisor)
This bachelor thesis deals with the design of a set of porcelain coffee cups. The principles of parameterization are used in the design, as well as an innovative way of creating decor using generative algorithms. The thesis examines the possibility of using additive technologies in the production of porcelain products, both in the production of molds and in the direct production by SLA technology. It also includes the development of material for 3D printing from porcelain and finding suitable process parameters for printing.
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Comparison of tensile properties of polymeric samples produced by extrusion based 3D printing
Krajcar, Ivo ; Vespalec, Arnošt (referee) ; Škaroupka, David (advisor)
The subject of this work is a summary of the contemporary knowledge about 3D printing and mechanical properties of a prototype manufactured this way. Main goal is to compare the frequently used FDM method with the innovative APF method of 3D printing from the Arburg company. ASA and CPE materials were chosen for researching this method. On these materials, tensile strength was measured. Aditionally, for comparison between the two methods, referential samples manufactured by injection moulding were made. A percentual difference in strength of each sample was compared against these. 60 samples in total were made for this comparison. After evaluation of the results, it was found that in the tensile strength the samples made by the APF method are approximately 30 % less strong than the referential sample. The samples made by the FDM method are approximately of the same strength as the referential sample.
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Construction of the stand for the filaments on spools
Bezděk, Petr ; Dočkal, Kryštof (referee) ; Škaroupka, David (advisor)
The aim of this bachelor thesis is to develop a stand for filament spools with minimal unwinding resistance, which eliminates stitching of filament and calculates the amount of unwound material. The stand is designed for a spool filament in the weight range of 250 g to 2.5 kg. Furthermore, the goal is to make the stand universal and usable for various 3D printers. The problem is solved by selecting the most appropriate concept for the problem based on the applicable concept analysis. The work contains an overview of the essential facts concerning stands, unwinding and 3D printing. Subsequently, the key issues are analysed on the basis of balancing the benefits of the possible variants of the concept. The chosen concept is solved in structural parts, which ultimately form a functional unit and a completed product. The result is a complete stand design in the form of written work, production documentation and manufactured product. The stand function has been verified by testing. The work is beneficial in terms of expanding awareness of rack issues, identifying 3D printing problems associated with the spool stand, designing and finished products for use in printing. The design is entirely designed to produce only one piece.
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